Cook County invasive species listed

The Minnesota Department of Natural Resources says 20 percent of boaters screened in the state so far this spring had an invasive species violation.

Cook County is not without its share of infested waters. According to a report released earlier this spring the DNR said spiny water fleas are the biggest problem.

In the BWCA, spiny water fleas are found in Caribou Lake. They are also found in Flour Lake, Gunflint, Little John, McFarland, North and South Fowl, Pine and Saganaga lakes.

Devil Track and Greenwood lakes are infested, as are the Pigeon River downstream of South Fowl, Royal Lake and the Royal River.

Some tributaries to Lake Superior, including those in Cook County can carry other invasives to the big lake. Species include ruffe, white perch and zebra mussels.

Tributaries may also carry viral hemorrhagic septicemia to Lake Superior.

Through June 6, DNR officers have ticketed or warned 1,898 boaters statewide for invasive species violations.